Screen



(No Model.)

H. B. SAOKETT.

SCREEN.

Patented Oct. 13,1891.

UNITED STATES PATENT OFFICE.

HIRAM B. SACKETT, OF COUNCIL BLUFFS, IOIVA.

SCREEN.

SPECIFICATION forming part of Letters Patent No. 461,250, dated October13, 1891.

Application filed May 16, 1891. Serial No. 393,033. (No model.)

To all whom it may concern:

Be it known that I, .I-IIRAM B. SACKETT, a citizen of Council Bluffs, inthe county of Pottawattamie and State of Iowa, have invented certain newand useful Improvements in Screens; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

My invention relates to an improvement in screens, and more particularlyto an improve- Y ment on the one disclosed in Letters Patent No.426,864, granted to me April 29, 1890, the object of the invention beingto construct the device in such manner that it can be readily adjustedto a car in close proximity to the side thereof, whereby coal, &c., maybe loaded into a wagon and at the same time screened.

A further object is to construct a screen in such manner that lumps ofcoal of large size may be permitted to pass through the hopper at theupper end thereof.

A further object is to produce a screen which may be adjusted at anydesired elevation or inclination.

With these objects in view the invention consists in the combination,with a frame the uprights of which are provided with a series ofperforations, of a screen,the frame of said screen having a series ofrecesses in its under side, and a rod adapted to pass through theperforations in the uprights and enter a recess in the screen-frame,whereby said sieve may be adjusted to different degrees of elevation andinclination; and the invention also consists in certain novel featuresof construction and combinations and arrangements of parts, ashereinafter set forth, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a perspective viewillustrating my improvements. Fig. 2 is a sectional view.

A represents a frame comprisinguprights a a and cross bars or. stays bb. Each upright a is provided with a series of perforations 0 for thereception of a rod B, and by providing a series of perforations in eachup right said rod may be'located at any desired elevation. Locatedwithin the frame A is a screen 0, the under edge of the frame of whichis provided with recesses d for the reception of the rod B. Thus it willbe seen that the screen 0 rests on the rod B, and by providing the underedges of the side bars of the frame of the screen each with a series ofrecesses d the relation of the screen to the frame may be readilyadjusted. In lieu of the recesses d a series of cleats orblocks may besecured to the under edges of the side bars of the screen-frame and thescreen be supported on the rod B between said cleats or blocks. A chainD is secured at its ends to the side bars of the screen at points inproximity to the lower ends thereof, and to this chain another chain Dis secured, the free end of the lastmentioned chain being adapted to bethrown over the top cross-bar b of the frame or passed through a loop onsaid bar and provided at its free extremity with a hook e, which may behooked into one of the links of the chain D. By this means the lower endof the screen will be supported and the inclination of the screen may bereadily adjusted.

At the upper end of the screen a hopper E is located, said hopper beingprovided with a hinged top or gate F, and the free end of said hingedgate adapted to normally rest on the side bars of the screen. In orderto maintain the hinged gatein itsnormal position springs g may beprovided, one end of each of said springs being secured to the sides ofthe hopper and the other ends made to bear on said hinged gate. Fromthis construction it will be seen that When the screen is employed forscreening coal, the lumps of which are of varying sizes, the smallerlumps will readily .pass through the hopper and under the free edge ofthe hinged gate; but when large lumps of coal are placed in the hoppertheir weight in descending the screen will force the hinged gate up, andconsequently they will bev permitted to pass through the hopper.

\Vith the device constructed and arranged as above setforth, when it isdesired to use it on a railroad-car for screening coal as it is removedtherefrom, the device may belocated in close proximity to-the car, theframe being connected to the car by means of suitable clamps. The screenmay be adjusted at any desired elevation, so that when used on a flatcarit may be adjusted close to the top edge of the side thereof, and thescreen may be readily and quickly adjusted to any desired degree ofinclination.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is v 1. The combination, with aframe each ofthe uprights of which is provided with a series of perforations, of ascreen, the side bars of said screen being provided with a series ofrecesses, and a rod adapted to enter the perforations of the side barsof the frame and receive the recesses of the screen-frame, substantiallyas set forth.

' 2. The combination, with a frame, of a rod adjustably connectedthereto, a screen provided with a series of recesses, whereby it isadjustably located on said rod, and a connection between the screen andthe frame, whereby to support the lower end of the frame and 2aspecification in the presence of two subscribingwitnesses. I HIRAM B.SAOKETT.

Witnesses:

J J. HEss,

S. S. SAOKETT.

